
.van-nav-bar{
    position:fixed;
    top:0;
    width:100%;
  }
.van-button {
    margin-top: 1rem;
    width: 90%;
  }

  .van-cell {
    align-items: center;
  }

  .tabs-bar{
    position:sticky;
    top:46px;
    left:0;
    z-index:3;
  }